chamilo-lms/main/admin/subscribe_user2course.php

<?php
/* For licensing terms, see /license.txt */
/**
*	This script allows platform admins to add users to courses.
*	It displays a list of users and a list of courses;
*	you can select multiple users and courses and then click on
*	'Add to this(these) course(s)'.
*
*	@package chamilo.admin
* 	@todo use formvalidator for the form
*/

/* INIT SECTION */
// name of the language file that needs to be included
$language_file = 'admin';
$cidReset = true;
require ('../inc/global.inc.php');
$this_section=SECTION_PLATFORM_ADMIN;
// including additional libraries
require_once(api_get_path(LIBRARY_PATH).'course.lib.php');
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
include_once (api_get_path(LIBRARY_PATH).'usermanager.lib.php');

$this_section = SECTION_PLATFORM_ADMIN;
api_protect_admin_script();

/* Global constants and variables */

$form_sent = 0;
$first_letter_user = '';
$first_letter_course = '';
$courses = array ();
$users = array();

$tbl_course = Database :: get_main_table(TABLE_MAIN_COURSE);
$tbl_user 	= Database :: get_main_table(TABLE_MAIN_USER);

/* Header */
$tool_name = get_lang('AddUsersToACourse');
$interbreadcrumb[] = array ("url" => 'index.php', "name" => get_lang('PlatformAdmin'));

$htmlHeadXtra[] = '
<script type="text/javascript">
function validate_filter() {
        document.formulaire.form_sent.value=0;
        document.formulaire.submit();
}
</script>';

// displaying the header
Display :: display_header($tool_name);

$link_add_group = '<a href="usergroups.php">'.Display::return_icon('multiple.gif',get_lang('RegistrationByUsersGroups')).get_lang('RegistrationByUsersGroups').'</a>';
echo '<div class="actions">'.$link_add_group.'</div>';

// displaying the tool title
// api_display_tool_title($tool_name);

$form = new FormValidator('subscribe_user2course');
$form->addElement('header', '', $tool_name);
$form->display();

/* MAIN CODE */

//checking for extra field with filter on
$extra_field_list= UserManager::get_extra_fields();
$new_field_list = array();
if (is_array($extra_field_list)) {
    foreach ($extra_field_list as $extra_field) {
        //if is enabled to filter and is a "<select>" field type
        if ($extra_field[8]==1 && $extra_field[2]==4 ) {
            $new_field_list[] = array('name'=> $extra_field[3], 'variable'=>$extra_field[1], 'data'=> $extra_field[9]);
        }
    }
}

/* React on POSTed request */
if ($_POST['form_sent']) {
    $form_sent = $_POST['form_sent'];
    $users = is_array($_POST['UserList']) ? $_POST['UserList'] : array() ;
    $courses = is_array($_POST['CourseList']) ? $_POST['CourseList'] : array() ;
    $first_letter_user = $_POST['firstLetterUser'];
    $first_letter_course = $_POST['firstLetterCourse'];

    foreach ($users as $key => $value) {
        $users[$key] = intval($value);
    }

    if ($form_sent == 1) {
        if ( count($users) == 0 || count($courses) == 0) {
            Display :: display_error_message(get_lang('AtLeastOneUserAndOneCourse'));
        } else {
            foreach ($courses as $course_code) {
                foreach ($users as $user_id) {
                    CourseManager::subscribe_user($user_id,$course_code);
                }
            }
            Display :: display_confirmation_message(get_lang('UsersAreSubscibedToCourse'));
        }
    }
}

/* Display GUI */
if(empty($first_letter_user)) {
    $sql = "SELECT count(*) as nb_users FROM $tbl_user";
    $result = Database::query($sql);
    $num_row = Database::fetch_array($result);
    if($num_row['nb_users']>1000)
    {//if there are too much users to gracefully handle with the HTML select list,
     // assign a default filter on users names
        $first_letter_user = 'A';
    }
    unset($result);
}

//Filter by Extra Fields
$use_extra_fields = false;
if (is_array($extra_field_list)) {
    if (is_array($new_field_list) && count($new_field_list)>0 ) {
        $result_list=array();
        foreach ($new_field_list as $new_field) {
            $varname = 'field_'.$new_field['variable'];
            if (Usermanager::is_extra_field_available($new_field['variable'])) {
                if (isset($_POST[$varname]) && $_POST[$varname]!='0') {
                    $use_extra_fields = true;
                    $extra_field_result[]= Usermanager::get_extra_user_data_by_value($new_field['variable'], $_POST[$varname]);
                }
            }
        }
    }
}

if ($use_extra_fields) {
    $final_result = array();
    if (count($extra_field_result)>1) {
        for($i=0;$i<count($extra_field_result)-1;$i++) {
            if (is_array($extra_field_result[$i+1])) {
                $final_result  = array_intersect($extra_field_result[$i],$extra_field_result[$i+1]);
            }
        }
    } else {
        $final_result = $extra_field_result[0];
    }

    $where_filter ='';
    if ($_configuration['multiple_access_urls']) {
        if (is_array($final_result) && count($final_result)>0) {
            $where_filter = " AND u.user_id IN  ('".implode("','",$final_result)."') ";
        } else {
            //no results
            $where_filter = " AND u.user_id  = -1";
        }
    } else {
        if (is_array($final_result) && count($final_result)>0) {
            $where_filter = " AND user_id IN  ('".implode("','",$final_result)."') ";
        } else {
            //no results
            $where_filter = " AND user_id  = -1";
        }
    }
}

$target_name = api_sort_by_first_name() ? 'firstname' : 'lastname';
$sql = "SELECT user_id,lastname,firstname,username
        FROM $tbl_user
        WHERE user_id<>2 AND ".$target_name." LIKE '".$first_letter_user."%' $where_filter
        ORDER BY ". (count($users) > 0 ? "(user_id IN(".implode(',', $users).")) DESC," : "")." ".$target_name;

global $_configuration;
if ($_configuration['multiple_access_urls']) {
    $tbl_user_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
    $access_url_id = api_get_current_access_url_id();
    if ($access_url_id != -1){
        $sql = "SELECT u.user_id,lastname,firstname,username  FROM ".$tbl_user ." u
        INNER JOIN $tbl_user_rel_access_url user_rel_url
        ON (user_rel_url.user_id = u.user_id)
        WHERE u.user_id<>2 AND access_url_id =  $access_url_id AND (".$target_name." LIKE '".$first_letter_user."%' ) $where_filter
        ORDER BY ". (count($users) > 0 ? "(u.user_id IN(".implode(',', $users).")) DESC," : "")." ".$target_name;
    }
}

$result = Database::query($sql);
$db_users = Database::store_result($result);
unset($result);

$sql = "SELECT code,visual_code,title FROM $tbl_course WHERE visual_code LIKE '".$first_letter_course."%' ORDER BY ". (count($courses) > 0 ? "(code IN('".implode("','", $courses)."')) DESC," : "")." visual_code";

if ($_configuration['multiple_access_urls']) {
    $tbl_course_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
    $access_url_id = api_get_current_access_url_id();
    if ($access_url_id != -1){
        $sql = "SELECT code, visual_code, title
                FROM $tbl_course as course
                  INNER JOIN $tbl_course_rel_access_url course_rel_url
                ON (course_rel_url.course_code= course.code)
                  WHERE access_url_id =  $access_url_id  AND (visual_code LIKE '".$first_letter_course."%' ) ORDER BY ". (count($courses) > 0 ? "(code IN('".implode("','", $courses)."')) DESC," : "")." visual_code";
    }
}

$result = Database::query($sql);
$db_courses = Database::store_result($result);
unset($result);

if ($_configuration['multiple_access_urls']) {
    $tbl_course_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
    $access_url_id = api_get_current_access_url_id();
    if ($access_url_id != -1){
        $sqlNbCours = "	SELECT course_rel_user.course_code, course.title
            FROM $tbl_course_user as course_rel_user
            INNER JOIN $tbl_course as course
            ON course.code = course_rel_user.course_code
              INNER JOIN $tbl_course_rel_access_url course_rel_url
            ON (course_rel_url.course_code= course.code)
              WHERE access_url_id =  $access_url_id  AND course_rel_user.user_id='".$_user['user_id']."' AND course_rel_user.status='1'
              ORDER BY course.title";
    }
}
?>

<form name="formulaire" method="post" action="<?php echo api_get_self(); ?>" style="margin:0px;">
<?php
if (is_array($extra_field_list)) {
    if (is_array($new_field_list) && count($new_field_list)>0 ) {
        echo '<h3>'.get_lang('FilterUsers').'</h3>';
        foreach ($new_field_list as $new_field) {
            echo $new_field['name'];
            $varname = 'field_'.$new_field['variable'];
            echo '&nbsp;<select name="'.$varname.'">';
            echo '<option value="0">--'.get_lang('Select').'--</option>';
            foreach	($new_field['data'] as $option) {
                $checked='';
                if (isset($_POST[$varname])) {
                    if ($_POST[$varname]==$option[1]) {
                        $checked = 'selected="true"';
                    }
                }
                echo '<option value="'.$option[1].'" '.$checked.'>'.$option[1].'</option>';
            }
            echo '</select>';
            echo '&nbsp;&nbsp;';
        }
        echo '<input type="button" value="'.get_lang('Filter').'" onclick="validate_filter()" />';
        echo '<br /><br />';
    }
}
?>
 <input type="hidden" name="form_sent" value="1"/>
  <table border="0" cellpadding="5" cellspacing="0" width="100%">
   <tr>
    <td width="40%" align="center">
     <b><?php echo get_lang('UserList'); ?></b>
     <br/><br/>
     <?php echo get_lang('FirstLetterUser'); ?> :
     <select name="firstLetterUser" onchange="javascript:document.formulaire.form_sent.value='2'; document.formulaire.submit();">
      <option value="">--</option>
      <?php
        echo Display :: get_alphabet_options($first_letter_user);
      ?>
     </select>
    </td>
    <td width="20%">&nbsp;</td>
    <td width="40%" align="center">
     <b><?php echo get_lang('CourseList'); ?> :</b>
     <br/><br/>
     <?php echo get_lang('FirstLetterCourse'); ?> :
     <select name="firstLetterCourse" onchange="javascript:document.formulaire.form_sent.value='2'; document.formulaire.submit();">
      <option value="">--</option>
      <?php
      echo Display :: get_alphabet_options($first_letter_course);
      ?>
     </select>
    </td>
   </tr>
   <tr>
    <td width="40%" align="center">
     <select name="UserList[]" multiple="multiple" size="20" style="width:230px;">
<?php
        foreach ($db_users as $user) {
?>
      <option value="<?php echo $user['user_id']; ?>" <?php if(in_array($user['user_id'],$users)) echo 'selected="selected"'; ?>><?php echo api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')'; ?></option>
<?php
}
?>
    </select>
   </td>
   <td width="20%" valign="middle" align="center">
    <button type="submit" class="add" value="<?php echo get_lang('AddToThatCourse'); ?> &gt;&gt;"><?php echo get_lang('AddToThatCourse'); ?></button>
   </td>
   <td width="40%" align="center">
    <select name="CourseList[]" multiple="multiple" size="20" style="width:230px;">
<?php
        foreach ($db_courses as $course) {
?>
     <option value="<?php echo $course['code']; ?>" <?php if(in_array($course['code'],$courses)) echo 'selected="selected"'; ?>><?php echo '('.$course['visual_code'].') '.$course['title']; ?></option>
<?php
}
?>
    </select>
   </td>
  </tr>
 </table>
</form>
<?php
/* FOOTER */
Display :: display_footer();